TSB200102-042720

Service Bulletin Details

Public Details for: TSB200102-042720

This technical service bulletin describes the verification and resolution of active fault code 1682 or 3574; def dosing unit not running when the def system leak test is run due to high resistance in the oem harness causing voltage dropout.

- 9999 -

Models from 9999

4/29/2020
Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Does Not Run During the DEF System Leak Test in INSITE™ Electronic Service T…
Technical Service Bulletin
Technical Service Bulletin: TSB200102
Released Date: 27-Apr-2020
Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Does Not Run During the DEF
System Leak Test in INSITE™ Electronic Service Tool: Fault Code 1682 or 3574
Aftertreatment Diesel Exhaust Fluid (DEF) Dosing
Unit Does Not Run During the DEF System Leak
Test in INSITE™ Electronic Service Tool: Fault Code
1682 or 3574
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices,
nor does it authorize TRP or Campaign actions.
Information Only - OEM Related Matter Not Covered By Cummins® - Contact Appropriate OEM
Dealer or OEM Representative For Additional Information
Contents
Product Affected
B6.7 CM2350 B121B
L9 CM2350 L116B
X12 CM2350 X119B
X15 CM2350 X114B
X15 CM2350 X116B
Issue
Symptom:
Active Fault Code 1682 or 3574
DEF dosing unit not running when the DEF System Leak Test is run.
Root Cause:
High resistance in OEM harness causes voltage dropout and could be leading to FC1682 or
FC3574 coming active incorrectly.
Verification
Proceed to perform Aftertreatment Diesel Exhaust Fluid Voltage Drop Test. See corresponding
Service Manual. Reference Procedure 011-165 in Section 11.
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4/29/2020
Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Does Not Run During the DEF System Leak Test in INSITE™ Electronic Service T…
Confirm if voltage drop detected after completing the procedure was within specification.
If the voltage drop is within specification, proceed to the corresponding Troubleshooting Tree
for the respective fault code.
If the voltage drop is not within specification, proceed to the Resolution section below.
Resolution
Malfunctioning OEM Wiring harness is detected if the voltage drop is not within specification.
Repair or replace the OEM wiring harness. See corresponding Service Manual. Reference
Procedure 019-071 in Section 19.
Document History
Date
2020-4-27
Details
Module Created
Last Modified: 27-Apr-2020
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2020/tsb200102.html
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